Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
When not in use spring pressure is holding the demand valve closed (seat pressed against orifice). Over time it takes a "set", or permanent indent. S "seat saver" is a means of keeping the purge pressed, manually opening the valve (seat raised off the orifice) to extend the life of the seat.What would happen if one doesn’t do this…
asking for a friend
In theory, yes... But modern materials are more resistant to taking a set. It's a trade off of possibilities. Old 109s had a rubber (not silicone) purge cover, and seat savers left in for years would deform them. Modern regs, not so much of a problem.question: with this, can you deform the purge cover and diaphragm more quickly?
Personally, all I want from a seat is two years of lifetime. So my main question is if we are getting this without seat saver (and I'l assume with seat saver the seat can be stored indefinetely)?